22 01 2020

Myth 1. And space allows you to hear sounds. Earthlings live on the surface of the planet, where we are surrounded by a rather dense environment. In the process of evolution, terrestrial beings were able to collect and interpret the vibration of the air or water surrounding them. Of course, this ability is also available to a person who receives a significant amount of useful information in this way. Since the atmosphere and the liquid are absent in space, there are also no conductors of waves of vibration - accordingly, there is no sound. The roar of engines and the roar of explosions that are heard in films about outer space, speak only of the fantasy of writers.

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Myth 2. A person in space is doomed to instant freezing. In outer space, cold really reigns. But remember - heat exchange is possible only with the physical interaction of particles. Since there are no particles in space, the cooling of the human body is extremely slow. The cosmonaut will choke faster than freezing.

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Myth 3. The cosmos makes it possible to increase the speed infinitely. It seems to many that the absence of gravity and air resistance will allow objects in space to be unlimitedly dispersed. In reality, such dispersal is limited by the absence of an infinite source of fuel.

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Myth 4. Fires are possible in space. The fire that is habitual for all of us is the burning of gases in the air. Where there is no air, it is impossible to burn. The only similar phenomenon that can be observed in space is an outbreak that "feeds" on air from a spacecraft.

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Myth 5. Soviet cosmonauts used pencils for recording in orbit. It is said that the development by the Americans of a pen that makes it possible to write under conditions of weightlessness, required a lot of time from NASA. But the Soviet cosmonauts used for recording pencils with graphite rods. But this is a delusion. Recall that when writing in pencil small chips from a graphite rod fall from a sheet of paper. In conditions of weightlessness, the chips would circulate in the air supply system of the ship, and its inhabitants had to breathe particles of graphite, which is counter-indicative.

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Myth 6. A person on the surface of Mars can suffocate or even explode because of the difference in internal and external pressures. A man who finds himself on Mars without a protective suit will suffocate - the atmosphere of the planet is very rarefied. But to burst the pressure inside the human body is clearly not enough. This did not happen even when the spacesuit was depressurized in outer space.

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Myth 7. For the movement around the ship, astronauts use jet packs. The jet of compressed air can really be used for maneuvering. But the knapsacks are meant for emergency cases, when an astronaut accidentally moves away to a dangerous distance from his ship. For traveling on a decent distance to the satchel, you would need to attach large backpacks for storing compressed air.

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Myth 8. The span of the ship through the asteroid belt is very complicated. A stable myth about the belts of asteroids is also due to movies. It should be noted that the alarming density in the films is the density of the belts of asteroids is large only by space standards. In real life hundreds of thousands of kilometers are measured "gaps" between fragments the size of a kilometer, forming such belts.

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Myth 9. The moon has a "dark side". The real fact is that you can not see its reverse side from the Earth. But this does not prove that the sunlight never falls on it. The sun illuminates every part of the surface of the moon, but we only see one side of the moon.

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Myth 10. When astronauts are in space, they are in a state of total weightlessness. Often discuss all sorts of negative consequences from human life in conditions - "completely without gravity." Earthlings have never been in total weightlessness. Our astronauts did not fly further than the Moon, and the Earth's gravitational field also operates there. Thanks to gravity, all astronauts are so fascinatingly "floating" in space.